Hopeful and Stuck

I'd like to take this course. I found out about my partner's emotional affair Sept 2017, after 7 years of being together. He moved out in November of 2017. The OW lives in the Texas, is married, 25 years his junior, and we live many states away. The continue to "network" together for work. My partner and I have been slowly rebuilding connection but he is "conflicted" about what he wants. He wants us to be friends but is on the fence about returning to the relationship. I feel very stuck--I feel in limbo. I need some guidance and support on how to let him know I would like to try and repair our relationship while I am strong enough and ok if he says no. I hate to give up on the relationship after 16 years of friendship. I also don't want to stay stuck in limbo. It would be great to have some tools to help me heal, assert myself in a loving way, and move on with my life if he chooses to remain ambivalent.